A Modified Location Aware Routing Algorithm for MANET

there are many routing protocol used in MANET. In which LAR protocol used to find location of mobile node. The Location-Aided Routing (LAR) protocol is an on-demand scheme. It utilizes location information to limit the route query flooding area. The prerequisite is that every host knows its own location and the global time, which can be provided by a Global Positioning System (GPS). Two scheme are used in LAR protocol i.e. Request zone and Expected zone. This paper has proposed an algorithm for expected zone. Expected zone is divided into four segments and easily finds out destination location. The proposed approach is suitable for both high and low density network. The aims of this paper are easily find the position of node and also find the direction of node using probability distribution function (PDF). Location Aided routing protocol reduce overhead the network so that it needs less calculation to find the location of destination. To implement the Location Aided Routing Protocol (normal), Location Aided Routing Protocol (using PDF) and Dynamic Source Routing protocols (DSR) certain simulation scenario is run. Results show that proposed algorithm increases the throughput in MANET and WLAN. Besides calculating the throughput, proposed approach also enhance data dropped rate, load, and retransmission attempts in ad hoc network.